Session 19 Swift IOS Code

IOS Mobile Application Development        

Session 19 Swift IOS Code

///Exception handling

enum RocketErrors : Error

{

case Error1

case Error2

case Error3

}

func RocketSpeed(fuel: Int, ast: Int) throws

{

  if( fuel < 1000)

  {

throw RocketErrors.Error1

  }

  else  if( ast < 1)

  {

throw RocketErrors.Error2

  }

  print("3, 2, 1");

}

do {

  try RocketSpeed(fuel : 500, ast: 1)

}

catch

{

  print(error)

}